it is a tuesday in week three of series a diligence. the lead's counsel sends a markup of the schedule of capitalization. the founder forwards it to their general counsel with "looks fine, just confirming." it is not fine. a $50k safe from an angel investor named in the seed close memo doesn't appear on the carta cap table. the cap on the safe is $8m post-money. the next conversation involves the angel, who lives in lisbon and is on holiday, the founder's seed-stage law firm that has changed associates twice, and the buyer's counsel who needs every variable resolved before the wire moves.
this delays the close by four weeks. the lead doesn't pull the term sheet. the dilution math just stops resolving until the missing safe is reconciled, signed, converted, and reflected. the founder loses a month of operating runway and ends the round with a slightly worse cap table than they started, because the safe was on a lower cap than the seed and the lawyers had to redo the conversion stack.
this is not a rare story. brex's 2025 founder survey put it at 38% of series a rounds with at least one cap table error material enough to delay diligence, average delay 3.4 weeks. the median founder has not reconciled their cap table against board minutes since the seed close.
what the audit actually finds
the failure modes are predictable. the numbers below are what carta's restructuring team and a handful of fundraise-focused law firms report finding across series a engagements.
the number that founders find hard to internalize is the third one. a month of close delay on a series a is not free. for a $2.4m arr team burning $400k/month, every week the round doesn't close is operating runway being consumed against an unmoved bank balance — and the round is closing at the same valuation it would have closed at four weeks earlier. the lawyer who finds the missing safe is doing the founder a favor, and also charging them for the discovery in compounding form.
the four errors that show up most
safe conversion math wrong on the cap. post-money and pre-money safes interact differently when they convert in the same priced round. y combinator's post-money safe (used in roughly 80% of seed rounds since 2018) dilutes founders before the priced round; older pre-money safes dilute alongside it. founders who closed a seed in 2019 with pre-money safes and a 2024 bridge with post-money safes have a stack where the conversion order matters. one mistyped checkbox produces a cap table that's 1-2 points off in founder ownership, and the lead's counsel will catch it.
advisor grants without proper 409a timing. a founder signs an advisor agreement in june, the board doesn't ratify the grant until august, the 409a valuation is dated march. if the company materially changed between march and august — closed a round, signed a marquee customer, doubled arr — the june-dated agreement may be void as an ungranted option and the august grant gets re-struck at a higher fmv the advisor didn't agree to. the buyer's counsel flags it for repapering.
departed-employee unvested shares not properly returned. engineer leaves at month 14 of a 4-year vest with 1-year cliff. they have 14/48ths vested; the unvested 34/48ths should return to the option pool. half the time, the cap table still shows the original full grant outstanding. the founder goes into the series a creating a larger pre-round pool top-up than necessary — which dilutes them by 1-3 points unnecessarily. a clean audit recovers that pool.
consultant equity granted as iso instead of nso. isos require a w-2 employment relationship. a 1099 consultant who got "options" on a standard board resolution probably got isos in the doc and nsos in tax reality. the company didn't notice because the cap table tool doesn't validate the employment relationship. this gets repapered in diligence in week 4 of a 6-week close.
what the audit looks like, in practice
the audit takes one afternoon. founder, general counsel, and finance lead in the same room. the artifact is a spreadsheet with one row per cap table line item and one column per source document. the test is whether every row reconciles to a board resolution, an executed grant agreement, an 83(b) election where required, and a current carta or pulley entry.
most of the breakage clusters around informal modifications and board ratifications that never made it into the tool. the board approved an option grant in march, the legal team forgot to file it. a founder told an advisor "we'll move you from 25 bps to 35 bps when you close the customer." the customer closed. the cap table didn't move. the advisor expects 35 bps in diligence; carta shows 25; the schedule of capitalization in the term sheet shows neither.
the audit is the difference between finding two errors on a tuesday afternoon and finding them in week three of diligence with the lead's counsel running the markup.
why founders skip it
it's not laziness. founders pay $1k-3k/month for cap table software exactly so they don't have to think about this. the failure is structural: carta is a system of record, not a system of verification. it shows whatever you've entered. if a safe was forgotten, carta doesn't know it was forgotten. it shows the cap table without the safe.
the audit is also unrewarding while it's happening. nothing visible improves. the founder finds two errors, files them, the cap table looks identical to before. the value shows up six months later, when diligence runs in two weeks instead of six. that's a hard thing to feel urgency about when you're trying to close revenue or ship product.
how zift handles this
zift reconciles your cap table against board minutes, signed grant agreements, and bank wires every monday, and surfaces the deltas in the briefing. when a board ratified a grant in march and the carta line item doesn't exist by april, the briefing names the grant, the recipient, and the missing document.
if you're a finance lead at a series a team running diligence-readiness across multiple funding instruments and a cap table that hasn't been audited since seed, zift handles that too.
the founder who runs the audit in week 1 of every quarter never finds out what a four-week diligence delay costs. the founder who skips it finds out from the buyer's counsel.