Excel doesn't. Tally doesn't. Zoho doesn't. POSIBILL does — along with retention, mobilization advance, and the TDS your builder deducts before he pays you.
No card to start. Bring your existing Excel and you'll be billing in fifteen minutes.
A real bill in the real product. Type the running total off your measurement sheet — POSIBILL works out what is actually billable.
Why generic billing software fails you
None of them is exotic. All three happen on every job you run, and no general invoicing tool models any of them — so the numbers you make decisions on are wrong.
A running account bill is work done to date, minus everything already billed on that job. Get that subtraction wrong once and you have either billed your builder twice for the same slab, or given it away.
Builders withhold 5–10% of every bill and release it a year after completion. Counted as receivable it makes your ageing report useless. Ignored, you never chase it. It is owed to you — but it is not overdue.
Your builder deducts income-tax TDS at 1–2% under §194C before paying. Generic software reads the shortfall as unpaid and carries a phantom balance on that bill forever. Record the TDS and the bill closes at zero, because it is closed.
Side by side
Fourth running account bill on a ₹1.85 crore tower job, with a 10% mobilization advance being recovered and 5% retention withheld. Here is what that costs you in each.
A depiction of a contractor's own billing sheet — the running total, the previous bills, and the deductions, all typed by hand.
| A | D | E | H | |
|---|---|---|---|---|
| 8 | Bill | Gross | Cumul. | Net paid |
| 9 | RA-1 | 42,00,000 | 42,00,000 | 35,70,000 |
| 10 | RA-2 | 36,00,000 | 78,00,000 | 30,60,000 |
| 11 | RA-3 | 31,00,000 | 1,09,00,000 | 26,35,000 |
| 12 | RA-4 | 25,00,000 | 1,09,00,000 | #REF! |
| 13 | Retention? | ? |
One number in — the running total from the measurement sheet. Everything else is worked out and shown before anything is created.
| The job in front of you | Excel | Tally / generic billing | POSIBILL |
|---|---|---|---|
| Raise the 4th RA bill on a job | Subtract by hand and hope | Type a fresh invoice; no idea what came before | Enter work-to-date; it bills the difference |
| Stop the same work being billed twice | Nothing stops you | Nothing stops you | Refused at the database, not by a warning |
| Know what retention you're owed | A second sheet, if you keep one | Not a concept | Live balance, with the release date |
| Recover a mobilization advance | Manual, every bill | Manual, every bill | Recovered at your agreed %, capped automatically |
| Close a bill the builder paid short by TDS | Leave it open, or fudge it | Shows a phantom balance forever | Record the TDS; it settles at zero |
| Place of supply for a site in another state | Not modelled | Follows the customer's address — often wrong | Follows the site, and tells you why |
| Set-up before it's useful | Already open, already wrong | A ledger structure and an accountant | Upload your Excel; answer a few questions |
The product
You think "how is the Perungudi tower going", not "show me invoice 47". So the home screen is your jobs, with the money against each one.
Billed against contract value, collected, outstanding, retention held, and advance still to recover — per job, at a glance. The three figures at the top are the ones you actually need: what you're owed, what's genuinely late, and what's being held back.
Ageing buckets that add up, and drill into the bills behind them. Retention sits in its own table with its release date, so a completed job does not drag your whole report into the 90-day bucket.
A bill that is not due yet says "not due yet" — it does not get quietly filed under 0–30 days overdue.
What your customer receives
GSTIN on both sides, place of supply and why it was chosen, HSN/SAC, the CGST/SGST or IGST split, a tax summary by rate, the amount in words, and your bank details. Plus the running-account box a builder's QS actually looks for.
Upload the sheet you keep your customers and rates in. POSIBILL reads it, shows you every extracted field next to the value it came from, and writes nothing until you confirm.
A GSTIN whose check digit is wrong gets flagged as a wrong check digit — not as "invalid". A rate that says "as per site" is flagged, not imported as zero. You fix the handful that need fixing and import the rest.
On site
Because you check what a builder owes you standing on a slab, not sitting at a desk. Big type, tabular figures, and nothing that needs a mouse.
Price
One business, unlimited jobs
About what one wrongly-billed slab costs you.
No card to start. No per-user pricing, no per-invoice pricing, no annual lock-in.
No, and it shouldn't. Tally is your books; POSIBILL is your billing and your receivable. Your CA keeps doing what they do — you stop keeping the running account, retention and advance positions in a spreadsheet beside it.
On a works contract you don't bill line by line — you bill the cumulative value of work executed to date, and deduct everything you have already billed on that job. So the fourth bill on a ₹1.85 crore job might be ₹25 lakh even though the measurement sheet says ₹1.34 crore.
POSIBILL holds the job's billed position and does that subtraction for you. It also refuses, at the database level, to bill the same position twice — so two people finalising at once still produces exactly one bill.
For work on immovable property the place of supply is where the property is, not where your customer is registered. So a Chennai contractor working on a Bengaluru site charges IGST, even if the builder's registered office is in Chennai.
POSIBILL takes place of supply from the job site, shows you which field it came from and why, and lets you override it deliberately before you finalise. It is never silently computed and never silently changed.
Yes — the billing model belongs to the job, not to your business. Run running account for a builder and fixed-fee milestones for a homeowner in the same month, each with its own retention and advance terms. Both draw from one bill-number series, because you are one business.
A finalised bill keeps its number and its figures permanently. You cancel it with a reason and raise a replacement, and both stay on the record with the reason attached. That is the only honest way to handle a numbered tax document, and it is what a scrutiny expects to see.
Yes. Everything you import and everything you create is yours, and you can take it back out. We don't sell it and we don't train anything on it.
If you sell over a counter and need a POS, or you need payroll, inventory valuation or statutory books, this is the wrong tool and you'll be annoyed with us. POSIBILL is for businesses that bill against jobs — civil and works contractors, interior and fit-out firms, fabricators, electrical and plumbing contractors.
Fifteen minutes with your existing spreadsheet, and you'll have a receivable position you can trust — retention, advance and TDS included.