Society Vendor Bill & Payment Ledger: Approval, Records and Audit

The vendor bill and payment ledger

Most society disputes about money are not about maintenance collection. They are about spending — specifically, a member at the AGM asking why the lift AMC cost ₹1.8 lakh, who decided that, and whether anyone compared it against an alternative.

If the answer lives in the outgoing treasurer's WhatsApp history, the society has a governance problem regardless of whether the spending was sound. A vendor ledger exists to make that question boringly answerable.

This page covers what to record against each bill, the approval structure that keeps individual committee members personally safe, and the statutory bits — TDS in particular — that societies most often get wrong.

Approval limits come first

Before recording anything, the society needs a written approval matrix adopted by the general body. Without it, every payment is technically an individual acting alone.

A common structure:

Set the actual figures against your society's size and bye-laws; the structure matters more than the numbers. Two rules make it work: the person who approves must not be the person who receives, and a bill must never be split into pieces to duck a threshold. Splitting a ₹1.2 lakh painting job into three ₹40,000 bills is the classic audit finding and it looks exactly as bad as it is.

For anything substantial, hold competitive quotes. Three is the convention. Keep the losing quotes — they are the evidence that a choice was made, and they are what makes the AGM question easy to answer.

What to record against every bill

For each vendor bill:

• Vendor name, PAN, and GSTIN where registered
• Bill number and bill date
• Description specific enough to be meaningful — "lift AMC, quarter ending Sept 2026", not "repairs"
• Amount, with GST shown separately
• Expense head it maps to in your chart of accounts
• Who approved it, under which limit, and the resolution reference where applicable
• The bill itself, scanned and attached
• For works: the completion certificate or the committee member who verified the work was done

For each payment:

• Date, mode, and bank reference
• TDS deducted, if any
• Whether it is full or part settlement
• The resulting vendor balance

The attachment is the part societies skip and auditors ask for. A ledger line without the underlying bill is an assertion, not a record.

TDS: the thing societies get wrong

A co-operative housing society is treated as a person liable to deduct tax at source on certain payments once it crosses the applicable thresholds. Committees routinely assume "we are a non-profit society, TDS does not apply to us." It does, and the society — and its office-bearers — carry the consequences of not deducting.

The payments that most commonly attract it:

• Contract payments — housekeeping, security agencies, painting contractors, AMCs. This is the big one, because security and housekeeping contracts are usually the society's largest recurring spend.
• Professional fees — auditors, architects, legal counsel.
• Rent — where the society rents premises or equipment above the threshold.

Both the rates and the threshold amounts are revised in Finance Acts from time to time, and separate thresholds apply per single payment and per annual aggregate. Get your auditor to confirm the current figures each financial year rather than carrying forward last year's assumption.

Practically, the society needs a TAN, must deposit deductions by the monthly due date, file quarterly returns, and issue Form 16A to vendors. Late deposit attracts interest; late filing attracts a daily fee that accumulates quietly until it is a real number.

Record the TDS on the payment line, not as a separate mystery adjustment. The vendor's ledger should show gross bill, TDS withheld, and net paid — so the vendor can reconcile against their own 26AS.

Keeping the vendor master clean

A vendor list that accumulates duplicates makes the ledger useless. "Sharma Electricals", "Sharma Electrical Works" and "M/s Sharma Elec." as three vendors means nobody can see what the society actually spends on electrical work.

• One record per vendor, keyed on PAN where available
• Bank details recorded once and changed only with verification — vendor bank-change fraud, where someone emails a "new account number" for a known vendor, is common and societies are soft targets
• Contract start and end dates, with renewal dates visible, so an AMC does not auto-renew unnoticed
• Deactivate old vendors rather than deleting them, so historical bills stay readable

What the committee should review monthly

Spend by head against budget, top ten vendors by value for the year, outstanding vendor balances, and any payment made outside the approval matrix.

That last one should normally be zero. When it is not, the exception should be discussed and regularised at the next committee meeting rather than discovered by the auditor eleven months later.

At handover to a new committee, the vendor ledger with attachments is the single most valuable thing the outgoing treasurer can hand across. Its absence is why so many societies re-negotiate contracts from scratch every two years.

How this works on Plinth

Vendor bills are recorded against a vendor and an expense head, with the scanned bill attached to the entry rather than filed separately.

Approval is captured on the bill — who approved it and under what authority — so the record shows the decision, not just the outcome. Payments post against the bill, carrying TDS and the bank reference, so each vendor's running balance reflects gross billed, tax withheld and net paid.

Expenses flow through to the society's financial statements without re-keying, and every entry and approval is written to the append-only audit log, so a bill or an approval cannot be quietly revised after the fact.

Frequently asked questions

Does a housing society really have to deduct TDS? Yes, once payments cross the applicable thresholds — most commonly on security, housekeeping and AMC contracts. Confirm current rates and limits with your auditor for the relevant financial year.

Do we need three quotes for every purchase? No — for routine small spends it is disproportionate. Apply it above the threshold your approval matrix sets, and keep the losing quotes for those.

Can the treasurer pay a vendor without committee approval? Only within the limit the general body has authorised. Beyond it, the payment needs the approval the matrix specifies, recorded before payment rather than ratified afterwards.

How long should we keep vendor bills? At least eight years is the practical answer, aligned with income-tax record expectations. Scanned copies attached to ledger entries are far more durable than a physical file that moves house with each committee.

A vendor emailed us new bank details. Should we update them? Not on the strength of an email. Verify by phone on the number you already hold for them. This is one of the most common frauds against societies.

Step-by-step guides

• Admin: Set Up Vendor Payments

Related: society financial statements · Tally export for housing societies · vendor selection by committee vote