Vesper Book a Teardown

For accounting firms and CAS teams

Accounting and FP&A. On the same client books.

Close the books, forecast cash, maintain models and prepare reports in one platform. We scope, build and validate the workflows and connections your firm needs. Your team owns the accounting judgments and forecast assumptions. A person you name approves before anything posts.

Free, 20 minutes. For accounting and CAS firm owners. No access or install.

Nothing posts without a name on it.The one who prepares is never the one who approves. Every step is written down.
Your AI rules, in writing.The AI Register lists every AI tool that touches client work. Free. It runs in your browser.
About 1.5 hours saved in FP&A.Per week, per portfolio company, in Project Falcon. Results from one engagement. See the FP&A results →
01What you get

The close feeds the rest of the finance work.

Your clients need closed books, cash forecasts, models and reports. Those jobs use the same actuals, but moving them between systems creates more preparation and review. We connect accounting and financial planning and analysis (FP&A), with each client’s chart of accounts, assumptions and reporting requirements defined before the work goes live.

Set up for each clientYour team defines the accounting judgments, forecast assumptions, report formats and review steps. The engagement sets which workflows and connections we build and validate.

The close, with named review.

Coding, reconciliations and schedules use the client’s own books and rules. Nothing posts until a person you name approves it, with the evidence kept alongside the decision.

A 13-week cash forecast.

Connect the forecast to ledger and bank activity, reconcile it weekly and update assumptions as actual activity changes. Your team can review and override those assumptions.

Three-statement and valuation models.

Feed actuals into models without another Excel export. Keep the assumptions your team uses and research industry transaction comparables to inform valuation projections.

Financial and bank covenant reporting.

Generate the agreed reports from the closed books. Accounting and finance work from the same actuals, with the package, covenant definitions and review requirements set for each client.

Observed in Project Falcon. One private equity portfolio used the platform for accounting and FP&A. FP&A saved about 1.5 hours per week per portfolio company. This is one engagement, not a promised saving for your firm. Read the case study.

02What it does

Accounting and FP&A, scoped for each client.

Choose the workflows that remove repeated preparation for your team. Accounting closes the books; finance uses those actuals for forecasts, models and reporting. Your engagement defines which workflows we build and validate. A person approves anything that reaches the books.

Set up for your clientsEach selected job uses your clients’ calendars, charts of accounts, limits and review steps. The scope determines what is included.

  • Coding that learns from your fixes

    It guesses the account for each transaction. An accountant checks the guess. Every fix goes back into the coder that made the guess.

    Your firm’s coding calls build up as a rule. They do not stay in one person’s head.

  • Bank recs

    It pulls in the bank lines and proposes the matches. A person confirms each one. It does the tie-out. The rec is not done until it balances.

    Each open item has an owner. And a trail. Not a sheet copied forward.

  • Schedules

    It spots prepaids and fixed assets in the transactions. It proposes the schedule. A person says yes before anything is booked. Change a term, a life or an account, and the entries are redone.

    The schedules stay current all year. Not rebuilt at year end for the audit.

  • Leases (ASC 842) and revenue (ASC 606)

    You edit the terms in draft. Then it measures the schedule and keeps it. The first entry always waits for a yes. Disclosures and tie-outs come from the same records. A change to a revenue contract re-splits the price. It does not touch closed months.

    A contract change shows you its catch-up. It does not quietly restate a month you closed.

  • A written close

    A checklist for each period. Each task has a due date, a named preparer, and what it waits on. It checks the tasks against the live books. Then the period locks.

    The process is written down. It does not live in one person’s head through busy season.

  • Thirteen weeks of cash, per client

    Use ledger and bank activity, open bills and invoices, and recurring payments to maintain a 13-week cash forecast. Reconcile it weekly. Agents update payment assumptions from actual activity; your team reviews and overrides them when it knows something the books do not.

    A current forecast, with assumptions your team can review.

  • Three-statement models and valuation projections

    Connect live general ledger data to the income statement, balance sheet and cash flow model, using your team’s assumptions. Research recent industry transactions to inform valuation projections and track the models each month without another Excel data dump.

    Closed actuals feed the next forecast and valuation review.

  • Financial and bank covenant reports

    Generate financial statements, management reports and bank covenant schedules from the closed books. Agree the package, formats, covenant definitions and review requirements for each client. Your team reviews the package before delivery.

    The reporting package starts from the same books as the close.

  • One prepares. One says yes. Per client.

    The review policy is set per client. Who can approve what, and up to what amount. The one who prepares is never the one who approves.

    “Who approved this, and on what basis?” You have the answer before they ask.

  • Your AI rules, in writing

    The AI Register sits under the policy. Every AI tool that touches client work. What goes into it. Whether anyone has read the terms. How it sits in the books. Each finding names the rule it rests on. It runs in your browser. Your answers never leave it.

    The insurer’s form comes. The list is done. No scramble.

The four-week Build covers one month-end close across the client books in scope. Additional forecasting, modeling and reporting work is agreed separately. The Sprint supplies a foundation your firm builds on; The Bootcamp teaches the method through one starter workflow.

03The rule

Nothing posts without a name on it.

The AI reads, drafts and proposes. Plain code does the sums and the checks. A person you name says yes to anything that reaches the books. There is no unwatched posting. And there is no setting that turns it on.

Why this mattersIf you cannot show how a number was made, you end up defending it by hand. The proof is the product.

Four levels of risk
Every action gets a risk level. If it touches the books or a client, a person must approve it first. If the system does not know an action, it treats it as the riskiest kind.
Two people, two jobs
The one who prepares is never the one who approves. You set who can approve what, per client and per amount.
Plain proposals
Before, after, the source, the risk, who must approve, and when it expires. All on one screen.
One record
The prompt, the run, each step, the proposal, the yes or no, and the post. One chain. You can walk it backwards.
A circuit breaker
If a task starts to get things wrong, the system takes away that task’s freedom and tells you. It can only step down. It can never step itself up.
Answers show their source
Every answer says the period, the basis, the source, and when the data was synced. If it could not check a thing, it says so.
04How it works

Start free. Stop at any step.

Five rungs. Each one stands on its own. Nothing commits you to the next. You keep the code.

The full ladder, on the home page →

On priceThe Sprint and the Bootcamp have set prices. The build and the run are quoted for each firm. The build is for firms with 15 or more client sets of books. Below that, start with the Sprint or the Bootcamp.

  1. Close teardown

    Free · 20 minutes · accounting and CAS firms

    Bring your recurring client count, delivery team size, and one typical close. We find the work that repeats and say what is not worth building.

    Book a teardown →

    A one-page map on request, sent within 48 hours. Yours to keep, with no purchase required.

  2. The Sprint

    $2,000 · one payment · one firm · self-guided

    A self-guided finance and accounting platform your firm builds for itself. A guided planner and tested foundation give you the starting point. Your own compatible AI coding workspace helps build and test selected workflows. Buy the Bootcamp later and the full $2,000 credits against one seat.

    What is in The Sprint →

    A perpetual licence to the supplied source. Workspace, AI and hosting costs are separate. Validate each workflow before live use.

  3. The Bootcamp

    $5,000 · four live weeks · small group

    The Sprint is included. Your team builds and tests one starter workflow on test data, with us in the room, then plans the next build.

    What is in The Bootcamp →

    The Sprint, a tested starter workflow, and a next-build plan.

  4. The build

    Four weeks · quoted for your firm

    One month-end close for every client you have. We move the first clients onto it. Week one is the check-up: read-only access, a map of what does not match, and the plan. You are buying an asset for your firm. The system we build for you is yours on payment in full.

    AI and hosting are running costs. Any support you choose is separate from the asset purchase.

  5. Running it

    Optional · monthly · two plans · quoted for your firm

    Base. We run the software for you. It runs in your own cloud account. We manage who can sign in, on your say. We look after your APIs, the links to your AI and your other tools. We can get in and fix them. We do not control them. The accounts stay in your name, and you pay for them.

    Plus. Everything in Base. And 20 hours a month to build new features you ask for.

    Fractional AI Officer

    Already built your own AI tools? We work with your team on what is still missing: controls, connections, testing and day-to-day use.

    An extension of managed services, scoped around the tools you already have. You can start here without buying an earlier rung. We agree priorities, responsibilities and fees before work starts.

    Book a scope call →

    A separate service you can choose. Stopping it does not take away the system you own.

05The free tool

Try the free AI Register first. It takes 90 seconds.

Name the AI tools your people use on client work. The Register builds itself. Every tool. Does client data go in? Has anyone read the terms? Can you trace the cost by person and by project?

It runs in your browser. Your answers never leave it. No email. You end with a page about your firm, not a brochure about ours.

Findings cite 16 CFR §314.4(f) and AICPA ET §1.700.040.

Also free: Close Capacity MapChoose one close job that keeps coming back to you, say what you usually have to do, and get one practical thing to check next close. Your own time estimate is optional. No email. Your answers stay in the current tab.
Find a place to start →

Also free: The Control DiagnosticTwelve questions on six layers of control. About six minutes. It names the layer least ready for AI. The result stays on your screen. Sharing it is up to you.
Run the Diagnostic →

06Where to start

Find the work your close repeats.

A free, 20-minute diagnosis for accounting and CAS firm owners, typically with 30–80 recurring clients and a delivery team. We walk one typical close, name the work that repeats, and say what is not worth building. If you want a one-page map, we send it within 48 hours. You keep it whether or not anything follows.

No access, no passwords, nothing installed. We talk through one typical client close.