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Estimate Bill Format

Estimate Bill Format: Three Filled Samples and Free Downloads

How to write an estimate that a customer can budget from and that still protects you when the job turns out bigger than it looked. For repair, construction, interior and event work.

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Quick answer

What is the format of an estimate bill?

An estimate bill format has the word Estimate in the title, an estimate number and date, a validity date, the customer and site details, the scope of work or items with approximate quantities and rates, any provisional amounts, the estimated total with GST shown or stated as extra, a list of what is not included, and a clause saying the final amount may differ and by how much.
  • An estimate is approximate. A quotation is a fixed price. A tax invoice is the bill. They are three different documents
  • An estimate never replaces the tax invoice once the sale or the work has happened
  • Free Word, Excel and PDF estimate formats below, with no sign-up

Quotation formatProforma invoice format

01

Estimate, quotation or bill: which one are you writing?

People search for an estimate bill format because in everyday trade the three words are used as if they meant the same thing. They do not, and mixing them up is where most billing disputes begin.

  • An estimate is your best approximation of a cost that cannot be fixed yet. It may change, and it must say so.
  • A quotation is a fixed price for a defined scope, valid until a stated date. Formats are on the quotation format page.
  • A bill, for a GST registered business, is the tax invoice issued when the goods are sold or the work is done. It is the only one of the three that is a legal record of a sale.

Write an estimate when you honestly cannot know the final figure: a repair before the machine is opened, painting before the walls are scraped, catering before the guest count is final. If you can fix the price, send a quotation instead. It wins more work, because customers prefer certainty.

02

What an estimate must contain

FieldWhy it is there
The word Estimate in the titleSo it can never be mistaken for a bill or a tax invoice
Estimate number and dateOne running series, for example EST/2026-27/001
Valid untilMaterial and labour rates move, so give the figures an end date
Customer name, phone and site addressThe site matters: access, floor and distance all change the cost
Scope of work or list of itemsDescribed plainly enough that the customer can see what is included
Approximate quantity, unit and rateMark measured quantities as provisional until the site is measured
Provisional amountsAnything that cannot be known yet, shown as its own line
Estimated total, with GST shown or stated as extraThe number the customer will budget from
What is not includedThe list that prevents most disputes
Variance clause and payment stagesHow much the total may move, and when money falls due
03

Sample 1: repair and service estimate

A repair estimate is given before the fault is fully known. The honest way to handle that is a provisional line: a cost that applies only if testing shows it is needed.

[Your service centre name]

[Address] | [Phone] | GSTIN: [your GSTIN]

ESTIMATE

Estimate no.: EST/2026-27/041 | Date: 21-09-2026

Valid until: 28-09-2026

Customer: [Name], [phone], [site address] | Job: 1.5 ton split AC not cooling

#WorkQtyApprox. amount (₹)
1Inspection and diagnosis at site1 visit500.00
2Refrigerant top-up, quantity to be confirmed after leak test1 job2,200.00
3Fan motor capacitor, replacement1 no650.00
4Provisional: control board repair, only if needed after testing1 job1,800.00
Estimated amount before tax5,150.00
GST at 18%, estimated927.00
Estimated total6,077.00

This is an estimate, not a bill. Line 4 will be charged only if required, and we will call you before doing it. If the total is likely to exceed this estimate by more than 10%, work stops until you approve. A tax invoice will be issued on completion.

04

Sample 2: painting and civil work estimate

Measured work is estimated from drawings or a quick site visit, and billed on actual measurement. Say that on the document, and show unknown repair work as a provisional sum instead of inflating every rate to cover it.

#WorkProvisional quantityRate (₹)Approx. amount (₹)
1Putty touch-up and one coat of primer on walls1,850 sq ft9.0016,650.00
2Interior emulsion on walls, two coats1,850 sq ft16.0029,600.00
3Ceilings, emulsion, two coats620 sq ft12.007,440.00
4Doors and window grills, enamel, two coats14 nos450.006,300.00
5Provisional: wall repairs found after scrapingLump sum3,000.00
Estimated total before tax (GST extra as applicable)62,990.00

Under the table, add: quantities are provisional and the final bill will follow joint measurement on completion; paint brand and shade range as specified, with premium shades extra; not included are waterproofing, woodwork polish and furniture shifting; payment is 40% advance, 40% after the first coat and 20% on completion.

05

Sample 3: event and catering estimate

Here the unknown is the head count. Price per plate, state the minimum number you will bill for, and state the rate for extra guests, so the final bill follows from the document without a conversation.

#ItemBasisApprox. amount (₹)
1Vegetarian buffet dinner, menu B150 plates x ₹65097,500.00
2Live chaat counter1 counter12,000.00
3Service staff, 5 hours8 staff x ₹9007,200.00
4Crockery, cutlery and buffet setupLump sum6,500.00
Estimated total before tax (GST extra as applicable)1,23,200.00

Terms to add: minimum billing of 140 plates; extra plates at ₹650 each, counted at the buffet; final guest count to be confirmed 72 hours before the event; 50% advance to block the date, balance on the day.

06

The variance clause: wording you can copy

This one paragraph does more to prevent disputes than any layout. Adapt the percentage to your trade.

This is an estimate prepared from the information available on the date above. The final amount will be based on actual work done and materials used, and may be higher or lower. If we expect the final amount to exceed this estimate by more than 10%, we will stop and obtain your written approval before continuing. Work not listed above is not included and will be estimated separately. This estimate is valid until the date shown. A tax invoice will be issued on completion.

Written approval does not need a signature on paper. A WhatsApp reply saying go ahead, against a message that names the extra work and its cost, is a record both sides can find later.

07

Showing GST on an estimate

An estimate is not a GST document, so there is no prescribed way to show tax on it. Two approaches work. Where you know the rate, show the estimated tax as its own line, as in Sample 1. Where the rate depends on how the job is finally structured, write GST extra as applicable beside the total, as in Samples 2 and 3. What does not work is silence: customers budget from the total they see. The tax itself is charged on the tax invoice, at the rate in force on that date. Our GST invoice generator builds that document when the job is done.

08

From estimate to quotation to invoice

  1. Send the estimate and set a follow-up date.
  2. Once the site is measured or the fault is found, reissue it as a firm quotation with a fixed price.
  3. If you need an advance before starting, send a proforma invoice for it.
  4. Record every extra in writing while the job runs.
  5. On completion, raise the tax invoice for the actual work, less any advance.
09

Download the estimate format

Blank working files, free, with no sign-up and no watermark. In the Word and Excel files our name appears only on a note you delete before sending.

Estimate bill format in Word marked approximate cost, not a tax invoice, with item table, GST rows, terms and acceptance line
Estimate bill format in Word
Estimate bill format in Excel with sample items and totals calculated by formulas
Estimate bill format in Excel
10

Five mistakes that turn an estimate into an argument

Calling it a bill

If the title says Bill, the customer will treat the figure as final.

No list of exclusions

Whatever you leave unsaid, the customer will assume is included.

Padding every line instead of showing a provisional sum

Padded rates lose the job to a competitor with honest rates and one clearly labelled unknown.

Verbal approval for extras

It is remembered differently by each side. One message fixes it.

No follow-up

Customers collect two or three estimates and then get busy. The business that calls back usually gets the job.

11

Keeping estimates from going cold

For a service business the list of open estimates is the sales pipeline. When that list lives in a notebook, the follow-up depends on memory. In HelloGrowthCRM each job is a deal with a value, an owner and a next follow-up date. The priced document is built with the quote builder and watched with quote tracking. The quotation follow-up guide applies to estimates just as well. Paid plans start at ₹899 per user per month and there is a free plan. See India pricing.

Challenges we solve

Where estimates cause disputes, and how to prevent them

Almost every argument over a final bill starts with something the estimate left out. Four of them, with the fix.

  • The final bill is higher than the estimate and the customer refuses the difference, because the estimate never said the figure could move.

    Write a variance clause on every estimate: the amount is approximate, and any change above a stated percentage will be agreed in writing before work continues.Variance clause

  • Extra work is agreed verbally on site, and at billing time neither side remembers what was said or what it was going to cost.

    Send a one-line message for every extra, with the amount, and ask for a reply. The reply is your approval, and it sits with the job record.Written approval for extras

  • A shop hands over an estimate slip at the counter, the goods are taken, and no tax invoice is ever issued for the sale.

    Treat the estimate as a price note only. Once the sale happens, a registered business issues a tax invoice or a bill of supply. The estimate does not replace it.Estimate is not a bill

  • Ten estimates go out in a week and only the customers who call back get any further attention.

    Give every estimate a follow-up date on the day it is sent. A short message two days later recovers jobs that were never actually refused.Follow-up date per estimate

What you get

Why teams choose HelloGrowthCRM

AI-powered CRM with the features you need to close more deals.

  • Rates come from a saved catalogue of services and materials, so they are consistent from one customer to the next
  • Each job is a deal on the customer's record, with its value, the site details in the notes and the person who owns it
  • Quotations keep their versions, so the history of what was offered, and when, is never lost
  • Send the PDF on WhatsApp or email from the record, and the send is logged on the customer's timeline
  • A follow-up task is created when a quotation goes out, because most jobs that are lost were simply never chased
  • Open jobs show as a pipeline stage with their value, so you can see how much work is waiting on a decision
  • When the scope is fixed, the firm quotation is built from the same catalogue lines, without retyping
  • Extra work agreed during the job is noted on the same customer record, which is what settles disputes at billing time
  • A won deal or an approved quotation converts to a GST invoice when the work is done, with the same lines carried over
  • Win and loss reasons are captured when a quotation closes, so you learn whether price, timing or trust is deciding your jobs

HelloGrowthCRM by the numbers

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per user/month list price — $10/user/mo on annual billing, ₹899/user/mo in India
$0
free forever starter plan — no credit card required
14-day
trial included on paid plans
259+
live integrations, from WhatsApp to Tally and QuickBooks
500+
teams worldwide run their pipeline on HelloGrowthCRM

Frequently Asked Questions

Plain answers about estimates, quotations and bills for Indian small businesses.

More CRM guides to explore

Browse related HelloGrowthCRM guides and see how different teams run their pipelines.

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