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Can an Estimate Be Converted Into an Invoice?

📅 ⏱️ 11 min read 👥 2.9k views

The customer experience in most organizations starts from estimates and ends up at invoice. As a freelancer, contractor, consultant, agency owner or small business owner it is important to learn how to turn the estimate into an invoice.

The most frequent question asked by entrepreneurs is whether it is possible to turn an estimate into an invoice without creating a new one. Yes, it is possible, as modern invoicing software is designed to help businesses streamline the estimate to invoice process, saving time and reducing manual data entry.

Based on my work with various businesses, I can say for sure that converting Estimate Into Invoice not only decreases paperwork and makes the billing process more accurate but also increases cash flow. The following article explains how estimates and invoices relate to each other, how and why you should generate invoices created from estimates.

What Does It Mean to Convert an Estimate to an Invoice?

Convert Quotation to Invoice involves converting an already approved estimate into an invoice. In an estimate, the costs are provided as an estimate before work starts, while in invoice, the costs are demanded after the delivery of goods or services.

The details usually contained in an estimate:

  • Services/products to be offered
  • Cost estimates
  • Work scope
  • Timelines
  • Terms & Conditions

When the client approves the project, and work is done, the details can be directly moved into Estimate Conversion to Invoice.

This information can later be used to prepare a professional sales invoice.

Why the Need for Businesses to Convert Estimate into Invoice?

Many reasons necessitate businesses to convert estimates to invoices through an efficient estimate into the invoice process.

Accurate

Through automatic importation of estimates into invoices, the following are assured:

  • Same pricing
  • Correct descriptions of products and/or services
  • Correct labor cost
  • Reduced human errors

Quick Process of Invoicing

Instead of preparing the invoice from scratch:

  • Search for the estimate approved by the client
  • Ensure the project is completed
  • Make necessary adjustments
  • Prepare the invoice
  • Forward the invoice to the client

Time is saved in preparing invoices.

Enhanced Credibility

Clients love to see the same details they have approved previously.

Consistency eliminates potential disagreements over:

  • Prices
  • Scope changes
  • Extra costs

Improvement in Cash Flow

Organizations which invoice quickly get paid quickly.

A good estimate into the invoice process reduces the time between project completion and payment.

Convert Estimate to Invoice Conversion: A Step-by-Step Guide

The steps to estimate invoice conversion are getting customer approval, performing work, making changes review, migrating estimate information, making totals verification, and creating an invoice with payment terms.

Checklist representing steps to convert estimate to invoice including customer approval
Figure 1: A checklist representing the key steps to convert an estimate into an invoice, including customer approval, work completion, and payment terms

Step 1: Creation of Detailed Estimate

Creation of professional estimate, which must include:

  • Customer Information
  • Information on services/products offered
  • Quantity
  • Price
  • Tax information
  • Terms and conditions

Creating a detailed estimate makes this process easy.

Step 2: Getting Customer Approval

Always make sure to obtain approval from your customer before you begin your work.

Approvals can be obtained through:

  • Signing of estimates
  • Confirmation via e-mail
  • Electronic approvals

Step 3: Perform Work

Provide products/services as per the estimate provided.

Document:

  • Work done
  • Additional requirements
  • Scope changes
  • Material changes

Step 4: Verify Differences

Verify the difference between the job completed and the initial estimate.

See if there were any:

  • Additional services offered
  • Differences in materials price
  • Differences in the extent of the project

Step 5: Make the Invoice

Generate an invoice from estimate using the approved project details to ensure accurate billing and a streamlined payment process. Many businesses use a word Invoice format for creating professional billing documents.

Make sure to include:

  • The invoice number
  • Issue date
  • Due date
  • Terms of payment
  • The details of the charges
  • Taxes
  • Total amount payable

Step 6: Sending and Tracking the Payment

After creating your invoice, you need to do the following:

  • Send it instantly
  • Verify it if needed
  • Track the payment
  • Maintain transaction records

What Should Be The Same in Estimate and Invoice?

Many organizations have been asking what details should remain the same when generating an estimated invoice.

Information That Is Normally Fixed

  • Name of Customer
  • Company Data
  • Project Description
  • Product Descriptions
  • Service Descriptions
  • Quantity
  • Price per Unit
  • Balance
  • Tax Information
  • Notations

What Are the Newly Added Items on an Invoice?

The term Invoice normally holds the following data:

  • Invoice Number
  • Invoice Date
  • Date of payment due
  • Payment Methods
  • Policies about late payment

Consistency between documents will help you look more professional.

Problems With Creating an Estimate Invoice

Even though this process is quite simple, businesses sometimes experience problems.

Scope Creep

The client asks for more work than was initially agreed.

Changing Price

Material or labor price might change during a long-term project.

Solution: Change prices early and obtain customer's approval.

Missing Information

Incomplete estimate leads to problems while creating invoice.

Solution: Use detailed itemized estimates.

No Approval

It is difficult to create an invoice without formal approval.

Solution: Establish standard approval procedure.

Best Practices for Managing the Estimate-to-Invoice Workflow

Companies that repeatedly do well in the estimate-to-invoice procedure have been using some best practices.

Business person using calculator and laptop for invoicing and financial management
Figure 2: Modern invoicing solutions help businesses automate the estimate-to-invoice conversion process, saving time and improving accuracy

Use Consistent Templates

Consistent templates ensure efficiency and professionalism.

Examples include:

  • Sales Invoice templates
  • Word Invoice templates
  • Excel Invoice templates

The use of consistent templates ensures all documents will be consistent in their structure.

Keep Your Documents Organized

Save:

  • Estimates
  • Client approvals
  • Change requests
  • Invoices
  • Proofs of payment

Proper documentation simplifies the audit process.

Specify the Scope of Work Clearly

Every estimate must include information about:

  • Deliverables
  • Exclusions
  • Assumptions
  • Deadlines

Clear specifications decrease miscommunication.

Automate the Process

The modern software allows automating:

  • Estimate conversion to Invoice
  • Invoicing process
  • Payments tracking
  • Reminders

Automation lowers administrative expenses and saves time. Businesses that prefer spreadsheets often manage records using an excel Invoice template.

When Is It Not Advisable to Convert an Estimate into an Invoice?

There are cases when you should create a new invoice instead.

Scope Change Is Major

In case of significant changes in the scope of work, it may be better to draft a new invoice.

Multi-Phase Projects

Large projects include:

  • Progress billing
  • Milestone billing
  • Partial payments

Several invoices may be generated from one estimate.

Pricing Terms Change

Significant changes in pricing terms may be presented more clearly in a newly created invoice.

Simplification of Conversion with Current Invoicing Solutions

Current invoicing solutions ensure that converting your estimates into invoices is an easy process.

Some common functions available in today's accounting solutions include:

  • Clicking button for conversion
  • Automatic calculations
  • Tax handling
  • Payment processing
  • Client portal
  • Approval tracking
  • Recurring invoices

The Importance of Consistency Between Estimate and Invoices

One important aspect that is frequently overlooked in the estimate into invoice process is the need to be consistent between the estimated document and the final invoice document. Since customers tend to evaluate the estimate document prior to giving approval to the project, they expect the billing document to reflect the same estimates regarding cost and work scope.

Consistency between documents will make it easy for the customer to reconcile the amounts charged for work since he or she can verify them against the original estimate document that was agreed upon by both parties. Without proper explanation and differences in description of the services, customers will feel skeptical about the invoice and take time to verify the amounts charged.

Businesses therefore should make sure that all the details on the approved estimate are captured on the invoice. In case some more services were added during the project, the changes should be documented accordingly and not mixed up with other line items.

How an Efficient Estimate-to-Invoice Workflow Facilitates Growth

As companies grow, there comes a point where project and payment management becomes complicated. An estimate into the invoice workflow system makes things easier by saving time and effort while increasing the accuracy rate.

Also, an efficient estimate invoice workflow system helps to keep track of the money coming in, project performance, and cash flow. In the end, all these efforts pay off and facilitate growth for the company.

Why Use Professional Estimate and Invoice Templates?

There are many advantages to using professionally-designed templates for your company's documents, especially when it comes to documents that deal with your customers.

Advantages include:

  • Efficient document generation
  • Error reduction
  • Professional look
  • Company branding
  • Better record management
  • Customer confidence

Example of Estimation to Invoice Conversion in the Real World

Take into consideration a web design firm that comes up with an estimate for their client:

  • Website design - $1,200
  • Content integration - $500
  • Basic SEO setup - $300
  • Total estimate cost - $2,000

This estimate gets approved by the client.

Then, during the course of the project, the client demands an extra landing page worth $200, which gets approved separately.

Finally, after project completion, the firm prepares an estimate invoice including:

  • Website design - $1,200
  • Content integration - $500
  • Basic SEO setup - $300
  • Extra landing page - $200
  • Total invoice cost - $2,200

Mistakes to Avoid While Generating Invoice From Quotation

Not Updating Any Changes in the Project

Make sure to add all changes approved like:

  • Additional services
  • More materials required
  • More labor hours required
  • New requirement of the project

Delay in Invoicing

Delays in invoicing will result in:

  • Slower cash flow
  • Forgetting about the project information
  • Payment problems

Generating invoice right after the project is done.

Not Adding the Terms of Payment

Each "Invoice" must mention:

  • Due date
  • Methods of payment accepted
  • Late payment policy
  • Any taxes applicable

Benefits of Estimating-to-Invoicing for Businesses

Organizations which establish a system of estimate into the invoice process usually enjoy various benefits.

Efficiency Gains

The reuse of estimated information results in reduced data entry.

Fast Payments

Fast invoice creation normally translates into fast payments from customers.

Enhanced Accounting

The connection between estimates and invoices ensures correct accounting.

Better Client Relations

Transparency and uniformity are valued by clients.

Decreased Billing Errors

The transfer of information directly from the estimate decreases chances of errors with regard to pricing and quantities.

Frequently Asked Questions

Can an estimate be considered as an invoice legally?

No. Estimate and Invoice are different terms. An approved estimate may act as the foundation to prepare an invoice.

How to Convert Cost Estimate?

Approval by the customer, work completion, change reviews, transferring estimated information, creation of an invoice, and then sending it for payment.

What is the estimate and invoice difference?

While Estimate is an anticipation of cost prior to performing any work, Invoice asks for payment after delivering products or services.

Can the total invoice exceed the estimated value?

Yes. The invoice can go beyond the estimation due to extra work or material and approved changes in scope.

Is Invoice From Estimate More Accurate?

Yes. Generally, the reuse of information from the estimate increases accuracy.

Conclusion

Knowing about the estimated to Invoice process is crucial for any business that operates in sales of goods and services. Estimate sets expectations and gets approval, whereas invoice asks for payment after completion of the work.

Effective Invoice automation process leads to less paperwork, more accuracy, increased trust of customers and faster cash flow. Knowing estimate and invoice difference is another step towards maintaining a professional accounting record and avoiding billing issues.

Whatever method you apply for creating the invoice created from the estimated process, whether manual or invoicing software, the well-defined workflow will provide smoother processes and better customer satisfaction.

Get started with professional templates, standardize your workflow and create an efficient estimate management process.

💡 Ready to convert your estimates to invoices? Use our free invoice generator to create professional invoices from your estimates in minutes.