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Invoice for hours worked

Invoice for hours worked

Invoice for hours worked

Jan 6, 2025

Jan 6, 2025

5 min read

5 min read

How to create an invoice for hours worked: templates and examples

Learn how to create an invoice for hours worked. Use our editable templates and examples for freelancers and professionals.

Learn how to create an invoice for hours worked. Use our editable templates and examples for freelancers and professionals.

Accurate and professional invoicing is the backbone of every successful business transaction, especially for freelancers, gig workers, and small business owners who rely on hourly billing. Whether you're crafting an invoice for hours worked on a single project or managing recurring clients, having a clear and transparent invoicing system is essential. This guide will walk you through everything you need to know about creating hourly invoices—from why they matter to step-by-step instructions on how to create them, sample templates, and best practices.

Why use hourly invoices?

An hourly invoice is a document that details the number of hours you’ve worked on a project, along with the corresponding hourly rate. Each task or service is broken down into specific time increments—usually hours or fractions of hours—so clients can see exactly what they’re being charged for. These invoices are most commonly used by freelancers, consultants, and professionals whose work varies in scope, allowing for precise billing and greater transparency. By clearly showcasing the time spent on individual tasks, an hourly invoice not only justifies your fees but also builds trust with your clients.

Hourly invoicing offers a practical, flexible, and transparent way to document your work and ensure proper payment. Here’s why you should consider it for your business:

  1. Transparency: hourly invoices provide full clarity for both you and your clients. By itemizing the hours worked and the corresponding tasks, you help eliminate confusion and build trust.

  2. Flexibility: for projects with varying levels of complexity, hourly billing ensures that you’re compensated fairly for unexpected challenges or changes in scope.

  3. Accurate compensation: whether you're working on long-term projects or ad-hoc gigs, tracking hours ensures you receive payment for every effort invested.

  4. Simplifies payment processes: well-organized invoices streamline communication and make it easier for both you and your clients to keep finances on track.

Your time is money—make it count with better invoices and contracts

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When to choose hourly billing

Hourly billing isn’t always the best choice—it depends on your type of work and clientele. You might prefer hourly invoices when:

  • The project scope is unclear or continually evolving

  • Your clients require ongoing support or retainer-style work.

  • Time-tracking offers a clearer picture of work performed compared to flat-fee contracts.

  • You’re working on projects with frequent changes or revisions. If deliverables are hard to define upfront, hourly billing allows you to adapt to shifting requirements without renegotiating terms.

  • The work involves consultation, research, or advisory services. In these cases, time spent on strategy and analysis is often best reflected in an hourly structure, ensuring fair compensation for expertise rather than output alone.

However, if you handle many smaller projects at once or need predictable income, alternatives like fixed fees or retainers may be more effective.

Key components of an hourly invoice

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A professional hourly invoice involves several essential components to ensure accuracy and professionalism. Here’s a breakdown of what to include:

1. Header

Label the document clearly as an "Invoice." This simple step eliminates any ambiguity about its purpose.

2. Business and Client Information

Include key details, such as:

  • Your name (or business name), address, and contact information.

  • Your client’s name, address, and contact details.

3. Invoice Number and Date

Assign each invoice a unique number and include the issue date. This not only improves organization but is crucial for tax and record-keeping purposes.

4. Line Item Breakdown

Clearly separate each task or service performed, specifying:

  • A description of the task.

  • Hours worked for each task.

  • Hourly rate.

  • Total cost for each item.

5. Taxes, Fees, and Discounts

Clearly outline taxes (where relevant), additional fees, or any discounts offered.

6. Total Amount Due

Clearly state the final total, both before taxes and after taxes or discounts. Highlight it to ensure visibility.

7. Payment Terms

Include:

  • Payment methods you accept (e.g., PayPal, bank transfer, etc.).

  • Payment due date.

  • Any penalties for late payments.

Step-by-step guide to creating an hourly invoice

An hourly invoice not only ensures you’re paid accurately for your time but also provides transparency and professionalism to your clients. To make the invoicing process seamless and clear, follow this step-by-step guide for building a perfect hourly invoice.

Step 1: Gather business and client information

Before drafting your invoice, start with the essentials: accurate and complete information for both you and your client. This step establishes clarity and professionalism from the start.

  • Include your full business name, company logo (if applicable), and contact information—such as email, phone number, and address. Adding a logo can make your invoice look polished and reinforce your branding.

  • Collect the client's details, including their company name, billing address, and relevant contact person. Double-check this information to ensure no delays in processing the payment.

If your client has specific invoicing guidelines, such as PO numbers or departmental references, ensure these are ready as well. This attention to detail prevents back-and-forth communication.

Need a faster, more professional way to create and send hourly invoices? Enty’s invoicing platform makes it simple to customize your invoices, add line items, calculate totals, and streamline your entire invoicing process. Plus, you can automate reminders and easily track payments—all in one place.

Say goodbye to invoice hassles – automate the process with Enty

Say goodbye to invoice hassles – automate the process with Enty

Invoices? Yes, please!

Step 2: Add invoice-specific information

Each invoice needs unique identifiers and relevant dates to ensure smooth tracking and timely payment.

  • Assign a unique invoice number. This helps both you and your client organize invoices and quickly locate them in case of queries or audits. A clear numbering system, such as INV-001 or INV-2024-03, can simplify the process.

  • Include the issue date (the day you send the invoice) and the payment due date. For example, you might specify “Payment due within 14 days of issue” to give a clear deadline. Providing a set timeframe helps avoid ambiguity.

  • For recurring invoices, consider including a billing cycle reference (e.g., "March 2024 hours") to clarify the invoicing period and streamline client record-keeping.

Step 3: Build line items

Line items are the heart of an hourly invoice, providing a clear breakdown of the services rendered and justifying your total charges.

For each task performed:

  • Multiply hours worked by your hourly rate to calculate the cost for that specific task.

  • Provide a concise yet informative description of the work done. For example, instead of simply stating “Consulting,” you could write “Market research and strategy consultation – 8 hours @ $75/hour.” This gives clients a better understanding of the value they’re paying for.

If you worked on different tasks, list them as separate line items. Breaking them down by activity or milestone helps clients understand how their money is being spent.

Use time increments to reflect accuracy—whether in hours, half-hours, or even 15-minute intervals. For example, if you spent 2.5 hours troubleshooting a website, make sure to reflect this detail transparently.

Step 4: Calculate the total amount due

Once line items are complete, it’s time to tally up the final amount to be paid. This step ensures there’s no confusion over the invoice total.

Add up the subtotals for all line items. If you’re billing multiple tasks at different rates, double-check your calculations to ensure accuracy. Include any applicable taxes, such as sales tax or VAT, depending on your business location and client requirements. Clearly state the tax rate and amount so clients know what they’re paying for.

If you offer discounts (e.g., “10% off for early payment” or “Loyalty discount”), subtract these from the subtotal and note them clearly on the invoice. Discounts can help build stronger relationships with long-term clients.

Present the final total in bold or larger font to make it easy for clients to locate. For example: “Total Amount Due: $1,250.”

Step 5: Define payment terms

Clear payment terms ensure both parties are on the same page regarding when and how payment should be made.

State the payment deadline explicitly. Common terms include “Net 15,” “Net 30,” or “Due upon receipt.” If you prefer immediate payment, communicate this clearly to avoid misunderstandings.

Specify the accepted payment methods, such as bank transfer, PayPal, credit card, or other platforms. Providing multiple options can make it easier for clients to pay promptly. Mention any penalties or late fees for overdue payments to encourage timeliness. For instance, “A late fee of 2% will apply for payments not received within 30 days.” This sets expectations while protecting your cash flow.

Include a brief note of appreciation to maintain a positive tone. For example, “Thank you for your business! Please feel free to reach out if you have any questions about this invoice.” A friendly approach helps reinforce your client relationship.

Best practices for hourly invoicing

To further improve your invoicing process, keep the following tips in mind:

1. Use professional templates

A professional invoice template is not just about aesthetics—it’s about making a statement to your clients that you are serious and organized.

Consistent use of well-designed templates can make your invoices look more polished and professional. These templates ensure that every invoice you send out follows a consistent format, which helps reinforce your brand’s identity. Using a template can also save you time and reduce the risk of mistakes. Instead of manually entering the same data on every invoice, such as your business name, logo, or payment details, you can create a master template that can be updated quickly as needed.

If you don’t have a custom template, consider using invoicing software like Enty, which offers professional, customizable templates that are easy to adapt and ensure that all necessary information is included in a structured, professional manner. Beyond looks, professional templates can also help organize your invoice logically, with clear sections for client information, hours worked, hourly rate, and a total amount due, which can increase the likelihood of faster payments.

2. Track your time actively

Active time tracking is essential to ensure that every billable hour is accounted for and billed correctly. It’s easy to forget small increments of time, especially when juggling multiple tasks. However, consistently logging your time throughout the day ensures that you don’t miss any billable hours. The more accurate you are with time tracking, the better you can explain any discrepancies with clients.

There are many great tools available to help with time tracking. Popular ones include Toggl and Clockify, which allow you to track hours in real time and even categorize time based on the specific tasks or projects you’re working on.

For those who need more automation, consider using time tracking apps that generate detailed line items for your hourly invoices based on the hours you’ve logged. This can save you time, reduce human error, and ensure that your invoices are consistent and accurate.

Be sure to track time accurately for every task and project, and consider using timers to make sure you're capturing time as it happens. This approach will also help you spot patterns in your work, allowing you to adjust estimates or plan for future projects more efficiently.

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Revolutionize your contract management experience with Enty

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3. Align with client preferences

Customizing your invoices to suit your clients’ preferences not only helps streamline the process but also shows your attention to detail and commitment to providing excellent service.

Before sending an invoice, ask your clients about their preferred format, such as whether they want a breakdown of individual tasks, hourly rates, or a simple total. Some clients prefer highly detailed invoices, while others may only need a summary of hours worked.

By understanding your client’s needs, you can tailor each invoice to meet their expectations. This could involve adding specific references like project codes, internal PO numbers, or contract terms that are relevant to them. This can also be particularly important for larger or recurring clients who may have strict invoice guidelines or an internal approval process. By delivering an invoice that aligns with their requirements, you can help ensure smoother payments and avoid delays.

4. Stay legally compliant

Complying with local and international tax regulations is critical to avoid legal trouble and ensure that your invoicing practices are above board.

Ensure that your invoices include all the necessary details, including your tax identification number (TIN), VAT or sales tax information, and any disclaimers required by local laws. Different regions have different regulations, so it’s important to be aware of the requirements in your jurisdiction.

If you’re working internationally, consider the tax laws of the client’s location as well. You might need to apply local VAT or other taxes depending on the nature of your services and where the client is based. It’s always a good idea to consult a tax professional to stay on top of regulations and avoid any potential fines or issues.

Tools and software for hourly invoicing

Technology has made invoicing faster and more efficient, offering a variety of tools to help businesses streamline their processes. Time tracking tools, like Toggl, Harvest, and Clockify, allow you to easily track billable hours, helping you stay on top of every minute worked. Many of these tools seamlessly integrate with invoicing platforms, making it simple to transfer hours tracked into professional invoices.

In today’s fast-paced business environment, technology should simplify the invoicing process by providing key features such as automated reminders, customizable templates, and integration with accounting software. These features save time, reduce errors, and ensure you get paid faster. For example, a good invoicing platform should not only allow you to generate and send invoices quickly but also enable you to track payments, calculate taxes, and customize the invoice to suit your branding.

Enty provides a comprehensive solution for creating, managing, and tracking hourly invoices. With customizable templates, automatically applied VAT, tens of currencies and detailed financial reporting, Enty makes it easy to generate accurate, professional invoices that reflect every billable hour. The platform also integrates seamlessly with time-tracking tools, helping you stay organized and efficient while ensuring your invoices are sent on time and payments are collected promptly.

Sample hourly invoice template

Hours turned into dollars: master the art of invoicing

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Here’s an example of how you could structure your invoice for hours worked:

[Your Business Name] 

[Your Address] | [Your Email] | [Your Phone Number] 

Invoice #001 | Date Issued: [MM/DD/YYYY] 

Billed To: 

[Client Name] 

[Client Address] 

Service 1 description, hours, rate, total

Service 2 description, hours, rate, total

Subtotal: $XX 

Tax (10%): $XX

Total Amount Due: $XX

Payment Due By:** MM/DD/YYYY** 

Accepted Payment Methods:** PayPal, Bank Transfer.**

Thank you for your business!

Tips for improving hourly invoicing efficiency

To make your hourly invoicing process faster, more accurate, and less stressful, consider adopting these strategies to streamline your workflow:

  1. Switch from Manual to Automated Processes Using Digital Tools
    Manual invoicing can be time-consuming and prone to errors. By moving to digital tools and invoicing software, you can eliminate most of the manual work. Automation saves you time by generating invoices based on predefined templates, calculating totals, and sending reminders automatically. This allows you to focus on the core aspects of your business, rather than getting bogged down with administrative tasks. Invoices are generated quickly, and you can track their status in real-time, reducing the risk of late or missed payments.

  2. Set Up Recurring Invoices for Long-Term Clients to Save Time
    For clients you work with on a regular basis, setting up recurring invoices is an efficient way to save time and reduce administrative work. Whether you’re billing weekly, monthly, or quarterly, recurring invoices ensure that you don’t have to recreate the same invoice from scratch every time. With automatic generation and delivery of invoices, you can maintain consistency, reduce errors, and ensure that clients are billed promptly for ongoing services. This is particularly useful for retainer-based work or any service that is billed regularly.

  3. Regularly Monitor Your Hourly Rates and Productivity to Refine Your Pricing Models
    To stay competitive and ensure that you're earning what you deserve, it’s essential to periodically assess your hourly rates and productivity. Tracking the time you spend on various tasks can help you identify areas where you're spending more time than expected or less time than necessary. Regularly reviewing your rates ensures you’re adjusting them to reflect your skills, experience, and market conditions. By refining your pricing model based on your productivity and industry trends, you can stay profitable and deliver high-value services to your clients.

  4. Use Cloud-Based Invoicing Solutions for Instant Access and Collaboration
    Cloud-based invoicing tools give you the flexibility to access your invoices and client data from anywhere, making it easier to stay organized while on the go. You can update, track, and send invoices instantly from your phone or laptop, ensuring you stay on top of your financials without having to wait until you're in the office. These platforms often offer real-time collaboration, allowing you to share invoice details with clients or accountants, ensuring transparency and improving communication.

  5. Organize and Categorize Your Invoices for Better Financial Management
    Maintaining a clean, organized system for your invoices can help you track payments, spot trends, and quickly address any discrepancies. Consider grouping invoices by client, project type, or status (paid, unpaid, overdue) to keep a clear overview of your financials. This organization not only saves time when you need to find a specific invoice but also helps during tax season or when generating financial reports for business planning.

By integrating these tips, you can make your hourly invoicing process more efficient, allowing you to focus on providing great services to your clients while staying on top of your finances.

Should you charge an hourly rate?

Hourly billing is often ideal for projects that are flexible and evolving, as it provides transparency and adaptability. You and your clients can easily track time, ensuring fair compensation for every hour worked, especially when tasks or workloads are unpredictable. This method fosters trust and allows you to adjust for scope changes or ongoing support.

However, hourly billing can also be challenging. It’s difficult to predict income, which can create cash flow uncertainties. Additionally, disagreements may arise over how much time was tracked, potentially causing friction in client relationships. This can be especially problematic if clients question the hours billed or if time tracking is not clear.

Alternatives such as flat fees or retainer agreements may be better suited for some businesses. Flat fees work well for well-defined projects with clear deliverables, providing predictable income. Retainers, on the other hand, offer consistent revenue for ongoing work and reduce the unpredictability of hourly rates. Consider the nature of your business and your client's preferences when choosing the best billing method.

Final thoughts

Creating professional and accurate invoices for hours worked doesn’t have to be complicated. With the right structure, tools, and practices, you can streamline the process, reduce errors, and improve client relationships. If you’re ready to take your invoicing to the next level, explore modern invoicing software and template solutions to ensure you get paid efficiently. For more tips and tools, start with Enty recommended templates and join countless professionals optimizing their billing today!

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