Reconcile solar installation progress billings to milestones and project costs

The records for solar installation progress billing rarely arrive in one place or at one time. A reliable packet connects the signed contract, approved change order, permit status, milestone certificate, customer invoice, payment receipt, subcontractor cost, and project ledger. Posting the final bank amount alone removes the evidence needed to explain timing, fees, adjustments, ownership, and unresolved differences.

Authoritative background includes U.S. Department of Energy solar project resources and FASB revenue recognition resources. These sources inform the workflow but do not replace the company’s contract, accounting policy, jurisdiction-specific rules, or professional advice. Record the source version and access date when a changing rule affects the procedure.

Define the legal entity, period, cutoff, currency, systems, accounts, locations, preparer, and reviewer before downloading records. Save untouched source exports with extraction timestamps, filters, row counts, and control totals. If a source can change later, retain a version or dated copy. A missing record stays visible as an exception; it is not a reason to estimate a convenient value.

Start with the last reviewed balance. Show additions, applications, reversals, transfers, refunds, corrections, and the closing position on separate lines. Compare the schedule independently with the relevant operational report, subledger, general ledger, provider statement, and bank movement. Net cash can agree even when customer, vendor, liability, revenue, or expense detail is wrong.

Use one row for each traceable event. Record stable identifiers, effective date, service period, gross amount, deductions, fees, taxes, reserves, refunds, currency, evidence link, status, owner, and due date. Do not combine unrelated items because they share a deposit date. Preserve original and corrected values in separate fields and leave formulas visible.

A project has a $120,000 contract with billings of 10% at signing, 50% after equipment delivery, and 40% after permission to operate. The billing system shows $72,000 invoiced, but the delivery packet supports only $54,000 of qualifying equipment after a substitution. The schedule isolates the unsupported milestone amount for review.

The point is not to force the sources to agree. First reproduce each source’s arithmetic. Then compare the result with the approved contract or procedure. Finally show the ledger effect. Write exceptions as observed facts: one source reports a value, another reports a different value, and the difference is quantified. Possible causes belong in a separate note until evidence confirms them.

Set escalation thresholds under company policy, but do not use dollars as the only trigger. A small repeated error, an approaching dispute deadline, an access concern, altered payment details, or a missing approval may need immediate attention. Aging matters too: a modest item open for several months can reveal a broken handoff.

An offshore bookkeeper can download approved reports, compare identifiers and amounts, reperform arithmetic, request missing documents, update statuses, and draft an entry for review. The bookkeeper stops when the work requires milestone achievement, contract interpretation, revenue recognition, change-order approval, lien compliance, or customer dispute. That belongs to the project manager and controller.

Make the decision request answerable without rebuilding the file. Include the amount, affected period, deadline, source links, observed difference, available options, and operational consequence of delay. Store the response with the workpaper rather than relying on a private message.

Use exact statuses: ready to match, matched, timing item, missing evidence, amount mismatch, duplicate risk, policy question, awaiting approval, disputed, and closed with evidence. “Checking” is not useful unless it identifies the question, owner, and next date. Carry unresolved items forward with their original age and reference.

Protect access as carefully as the arithmetic. Use named accounts, multifactor authentication, and read-only or limited permissions where available. Separate preparation from payment release, bank-detail changes, credits, refunds, write-offs, journal posting, period locking, and deletion. Store sensitive evidence only in approved systems and mask identifiers when full details are unnecessary.

Test completeness in both directions. Select source records and trace them into the workpaper; then select workpaper lines and trace them back to original evidence. Reperform large, unusual, manual, old, zero-value, and post-cutoff items. Equal and opposite entries still require review because they can conceal duplicates or misdirection.

The reviewer confirms the population, control totals, formulas, exception ownership, proposed entries, and judgment calls. Each review note needs a focused question, owner, date, response, and closure evidence. Preserve earlier answers when they change so the file explains how the final treatment was reached.

Track population count, matched and unmatched values, oldest exception, corrections returned, and percentage reviewed by deadline. These are workflow signals, not promises of financial performance. Repeated exceptions should lead to a better intake form, export, naming convention, or approval path.

Close with untouched exports, reconciliation, evidence index, exception log, approved entries, reviewer decisions, and a concise summary. State what tied, what remains open, the value exposed, the next owner, and the next review date. Link the package from the close checklist using a consistent entity-process-period-version name.

For help defining the preparation lane, see the relevant Offshore Bookkeepers service. If your company needs a Philippines-based bookkeeper to maintain the schedule and route exceptions while your finance owner retains approval, plan the role with Offshore Bookkeepers.