Spreadsheet checks before running Closing Cost in United States Federal

What the checker catches

Run this scenario in DocketMath using the Closing Cost calculator.

Before you run a Closing Cost calculation in DocketMath for United States Federal (US-FED), most avoidable mistakes start in the spreadsheet: incorrect inputs, mismatched units, missing fields, or formulas that drift out of alignment. The Spreadsheet checks layer is meant to catch those problems before the closing-cost calculator produces a number.

Here’s what the checker typically flags.

1) Unit and rounding mismatches

Spreadsheet errors often come from mixing dollars with cents or entering percentages in the wrong format.

Common examples:

• ✅ Good: 3.25% entered as 3.25 (or as 0.0325, depending on what the tool expects)
• ❌ Risky: 3.25 entered when the calculator expects 0.0325
• ✅ Also checked: consistent rounding (e.g., fee lines rounded to 2 decimals while rate/period values keep full precision)

What to do: align your spreadsheet’s input format to what DocketMath expects, then re-run the checker after any edits.

2) Interest rate / APR confusion

A frequent bug is using an APR in a field that expects an interest rate (or vice versa), especially when both appear on loan documents.

The checker looks for warning signals such as:

• Rates that are negative or implausibly high
• APR-like values appearing in fields that would otherwise be redundant for the math being performed

What to do: confirm which field your spreadsheet uses for the “rate” input and ensure it matches the calculator’s intent.

3) Loan term inconsistencies

If your spreadsheet implies a different amortization period than the term field, results can drift significantly.

Checks include:

• Term stored in years vs. months (e.g., 30 interpreted as 30 years vs. 30 months)
• Payment frequency mismatches (monthly vs. biweekly) if your sheet includes payment assumptions

What to do: verify the term unit and payment cadence assumptions are consistent across the sheet.

4) Missing or blank fee components

Closing-cost totals are sensitive to whether each required fee category is present.

The checker commonly detects:

• Blank cells in fee categories that should contain a value
• “Looks filled” cells (e.g., a space character or hidden text)
• Formulas that return "" instead of 0, which can break downstream totals

What to do: treat blanks in required numeric fields as errors—replace them with an explicit 0 when no amount applies.

5) Sign errors (credits vs. charges)

Spreadsheet math breaks when credits are treated like charges (or vice versa).

Typical triggers:

• Negative values where the sheet expects positive fee amounts
• Credits entered with the wrong sign convention—causing totals to decrease when they should increase, or the reverse

Pitfall: a single negative fee line can make a “total closing cost” look too low even when most other inputs are correct.

What to do: confirm the sign convention the spreadsheet uses for each line type (fee vs. credit) before running the calculator.

6) Cross-field logic conflicts

Many closing-cost workbooks have internal dependencies—one field should “agree” with another based on the assumptions selected.

The checker verifies coherence such as:

• Escrow/property-tax-related fields that don’t align with the stated pay schedule
• Prepaid/escrow amounts that appear non-zero even when your sheet indicates escrow is off (depending on your workbook structure)

What to do: look for toggles/assumptions (like escrow on/off) and ensure all dependent cells respond accordingly.

7) Date-related issues

Even in US-FED workflows, many calculations depend on dates to determine prepaid periods, day counts, or timing.

The checker checks for:

• Dates stored as text (e.g., "01/02/2026" as a string)
• Start/end dates that create negative or impossible day ranges
• Missing closing date when dependent inputs are present

What to do: ensure dates are real date values (not pasted text) and that the chronology is logical.

8) Formula integrity

Silent spreadsheet issues often come from formula drift—copying the wrong formula into a column, or leaving hard-coded values where formulas should exist.

The checker looks for patterns like:

• The same formula applied to the wrong column (e.g., referencing a fee cell instead of the rate cell)
• Hard-coded cells mixed into an otherwise formula-driven section
• Columns with mixed data types (numbers plus text)

What to do: after any row/column edits, re-run checks to confirm the calculations still reference the correct inputs.

When to run it

Run the checker before you finalize numbers for review, export, or presentation. The goal is to avoid a misleading result that looks “reasonable” but is driven by broken spreadsheet logic.

Run the checker before importing a spreadsheet into the Closing Cost workflow. It is especially helpful when you have multiple entries or when a teammate provided the inputs.

Recommended moments

• After you import or paste values from loan estimates, underwriting materials, or settlement statements
• After you change an assumption (rate, term, property tax estimate, credit amount, prepaid items)
• Before exporting to any client-facing summary, so you don’t publish output built on invalid inputs
• After spreadsheet cleanup (filtering, deleting rows, reformatting), which can break references

Minimal change protocol (fast workflow)

• If you changed any inputs that feed fee lines or prepaid items, rerun the checker.
• If you changed only display formatting (currency symbols, column width), rerun only if you pasted/retyped values as part of the cleanup.

What happens to output when issues are found

When the checker detects problems, it typically:

• Stops the closing-cost calculation from proceeding, or
• Returns warnings that point to which lines or inputs must be corrected

Either way, you avoid a final number that appears valid but is actually inaccurate.

Try the checker

Use DocketMath to run the closing-cost calculator only after your spreadsheet passes spreadsheet-checker validation.

Primary CTA: /tools/closing-cost

A practical way to test your workflow:

1. Open your Closing Cost worksheet.
2. Verify your key fields: rate/APR, term, amount financed (if used), fee lines, prepaid items, and dates.
3. Run the checker to validate data types, units, signs, and cross-field logic.
4. Only then run the Closing Cost calculation.

Quick “inputs to verify” checklist

Gentle note: This is a validation checklist to reduce spreadsheet errors, not legal advice. For authoritative guidance on specific requirements, consult the relevant official materials and professionals in your jurisdiction.

Related reading

• Average closing costs in Alabama — Rule summary with authoritative citations
• Average closing costs in Alaska — Rule summary with authoritative citations
• Average closing costs in Arizona — Rule summary with authoritative citations