PAR30 Is Your Loan Book's Blood Pressure. Check It Daily.

What does portfolio at risk actually measure?

Portfolio at risk, or PAR, is the fraction of your money that is sitting in troubled loans. PAR30 is the standard cut: take the total outstanding principal of every loan with any installment more than 30 days past due, and divide by the total outstanding principal of the whole book.

The detail that matters: the numerator is the entire remaining balance of the late loan, not just the missed installment. If a borrower with ₱85,000 still outstanding misses one ₱6,800 installment for 31 days, all ₱85,000 counts as at risk. That sounds harsh and is exactly right, because a borrower who has stopped paying puts their whole balance in question, not one row of it.

Worked small: a book of ₱8,500,000 outstanding across 240 loans, where the loans more than 30 days late sum to ₱1,020,000 of remaining principal, has a PAR30 of 12 percent. For unsecured small lending, single digits is the territory you want. Creeping past 10 to 12 percent is your book telling you something changed, in underwriting, in collections, or in your borrowers' economy.

Why does month end PAR reconstruction fail?

Most small lenders meet their PAR the same way: after the month closes, someone spends days assembling it. Filter the sheet for late accounts, hand-check each one's days past due, chase the payments that were received but never encoded, argue about whether a restructured loan counts, and produce a number around the 10th of the following month.

That number has three defects. It is late: it describes your book as it stood weeks ago. It is fragile: one uncounted GCash payment or one wrong due date shifts it. And it is a snapshot with no motion: 11 percent tells you where you are, not whether you are climbing or falling, which is the actual question.

Steering a loan book with month old PAR is driving by the rear view mirror. Every response you make, tightening releases, pushing collections, is at least six weeks behind the event that should have triggered it.

PAR as a live number

None of the arithmetic in PAR is hard. It is just arithmetic over the whole book at once, which humans do slowly and ledgers do instantly. When your loans and payments live in a real system, days past due is already computed for every account, every day. PAR30 stops being a project and becomes a figure on the owner's dashboard each morning, with its trend line beside it.

A live PAR changes what you can see:

• Direction, not just position: 11 percent falling from 13 is a recovery. 11 percent rising from 9 is a warning. Same snapshot, opposite meanings.
• The cliff edge: accounts at 25 to 30 days past due are next month's PAR. A live system shows the pipeline before it tips.
• Cause, by slice: cut PAR by product, by release month, by branch, and the source shows itself. If loans released in March are aging worse than any other cohort, you have an underwriting question with a date on it.
• Provisioning without guesswork: PAR by bucket is the basis for realistic loss provisioning, so profit stops being a number that surprises you at year end.

The month end habit is a symptom

If computing PAR takes your team days, that effort is the visible cost of an invisible problem: your ledger cannot answer questions about itself. The same plumbing that makes PAR live also makes aging buckets automatic, statements printable, and daily collections visible. PAR is simply the first number that makes the owner feel the difference between reconstructing the past and watching the present.