TripleBill for Contractors
Contractor Billing Software for Quotes, Advances and Stage-wise Invoices
A contractor — civil, electrical, plumbing, interiors — quotes a job, takes an advance, bills in stages as the work goes on, and buys material all along the way. Clients deduct TDS, pay late and argue over what was agreed. Contractor billing software has to keep the quote, the advance, each stage bill and the material cost tied together. TripleBill does that, with GST and the books underneath.
GSTIN 29ABCDE1234F1Z5
TAX INVOICE
#1045
14 Apr 2026
Bill To
ABC Traders
Bengaluru, Karnataka
| Item | Qty | Rate | Amount |
|---|---|---|---|
| Aashirvaad Atta 5kg | 2 | ₹262 | ₹524 |
| Amul Taaza Milk 500ml | 1 | ₹28 | ₹28 |
| Britannia Bread | 3 | ₹50 | ₹150 |
What gets in the way
- Quotes revised three times and nobody sure which one was agreed
- Advances taken in cash with no receipt
- Stage bills typed in a word processor with GST worked out by hand
- Clients deducting TDS and the contractor losing track of it
- Material bought for the job scattered across shops and bills
- Profit on a job known only after it is finished, if at all
From quote to advance
Price the job as a quotation with each item of work as a line — material and labour, with SAC or HSN codes and GST — and a validity date. Revise by duplicating, so every version stays on record and the one the client accepted is clear. Ask for the advance with a proforma invoice: it carries the same lines, goes out as a PDF or link, and does not touch your books until you issue the real invoice.
- Quotation with validity, versions kept
- SAC / HSN and GST per line
- Proforma invoice for the advance
- PDF or share link for every document
Stage-wise invoices
Bill each stage as its own GST invoice — "Stage 2: plastering and electrical conduits, 30%" — with the client's GSTIN and place of supply. Record the advance and each payment against the invoices it pays; part-paid bills show their balance. For a fixed monthly maintenance contract, a recurring invoice can be raised on a schedule (Starter and Pro).
When a client deducts TDS, record the payment you received and enter the deduction in the TDS / TCS register; the TDS receivable report lists what clients have deducted, for your CA to match with your tax credit statement.
- Invoice per stage
- Advance and payments against invoices
- TDS receivable register
- Recurring invoices for monthly contracts
Material and expenses
Material bought for the work goes in as supplier bills with input credit; labour payments, transport and site expenses go in as expenses by category. The profit and loss for any period shows what the business earned after them. Credit limits and part payments work for clients who pay in instalments.
- Supplier bills with input credit
- Expenses by category
- Profit & loss for any period
Clear papers for the client
Every quotation, proforma and invoice goes out as a PDF with your logo or a link the client opens on the phone. The statement link shows the client every bill and payment, so the final settlement starts from agreed figures.
Contractors: what you need and how TripleBill does it
| What a contractor needs | How TripleBill handles it |
|---|---|
| Agreed price | Quotations with validity; each revision kept |
| Advance | Proforma invoice; payment recorded when it comes |
| Stage bills | A GST invoice per stage with SAC / HSN codes |
| TDS | TDS receivable register for deductions by clients |
| Material and labour | Supplier bills and expenses |
| Client statement | Statement link with every bill and payment |
GST and the books, done underneath
Every bill posts to real double-entry books as you sell: sales, GST output tax, cash, bank and the customer ledger. Purchases do the same on the input side, so GSTR-1, GSTR-3B and the HSN summary are ready for any month and your accountant gets a trial balance that balances.
Not built yet
We would rather you know before you sign up:
- Project or site-wise costing — profit is for the business, not per job
- Running account (RA) bills with a measurement book
- Retention money held by the client as its own ledger
- Labour attendance and payroll
How to bill a contract job in stages in TripleBill
- 1
Quote the job
Make a quotation with each item of work, SAC or HSN codes and GST, and revise by duplicating until the client agrees.
- 2
Take the advance
Send a proforma invoice for the advance as a link or PDF, and record the payment when it comes.
- 3
Invoice each stage
Raise a GST invoice for each stage as it is completed, and apply the advance and payments against it.
- 4
Record TDS and costs
Enter TDS deducted by clients in the TDS / TCS register, and enter material bills and site expenses so profit is real.
Frequently asked questions
Can I take an advance before the work starts?
Yes. Send a proforma invoice for the advance; it does not touch your books until you issue the real invoice.
Can I bill a job in stages?
Yes. Raise a GST invoice for each stage and record payments, including the advance, against them.
Does it track TDS deducted by my clients?
Yes. Enter each deduction in the TDS / TCS register; the TDS receivable report lists it for your CA.
Can I see profit per project?
Not per project. The profit and loss shows the business as a whole for any period.
Can I use SAC codes for services?
Yes. Each line carries an HSN or SAC code and its GST rate.
What does it cost?
Quotations, proformas, invoices, purchases, expenses, TDS registers, GST reports and the books are on Starter (₹299/month, ₹2,999/year or ₹6,999 for 3 years). Every new business gets a 7-day free trial with everything unlocked.
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