Skip to content
  • There are no suggestions because the search field is empty.

K1 Aggregator Tax Estimates Guide

This guide walks through how to use K1 Aggregator to manage estimated K-1 data for extension filings, forecasting, and cutoff workflows.

Why Use K1 Aggregator for Estimates?

K1 Aggregator helps you:

  • Keep all estimated and actual K-1 data in one place
  • Track which K-1s are received vs. still outstanding
  • Review estimate totals across your portfolio
  • Maintain visibility into assumptions as data evolves

Understanding Estimates in K1 Aggregator

When final K-1s aren’t available, you can track values in two ways:

  • Estimate column
    Used for internal tracking and modeling
  • Federal K-1 Amount column
    Used for reporting and integration with tax software

⚠️ Important:
Only values in the Federal K-1 Amount column flow into your tax return.
The Estimate column is for tracking purposes only.

👉 A common workflow is to track values in the Estimate column, then move them to Federal K-1 Amount when you’re ready to integrate.


Common Ways to Use Estimates

Extension Filings

When K-1s are still outstanding at the deadline:

  • Start with prior year amounts
  • Update as K-1s are received
  • Track missing items in one place

Forecasting & Planning

Use estimates to:

  • Project tax liability
  • Plan cash flow
  • Evaluate investment performance

Cutoff Method

If using a cutoff date:

  • Include actual K-1s received before the cutoff
  • Use estimates for the remaining investments

How to Add Estimate Data

Option 1: Start with Prior Year Data (Fastest)

Best if you want a quick starting point.

  1. Go to Instance Settings → Rollover Settings
  2. Enable rollover of current year K-1 amounts into next year estimates
  3. Run rollover
  4. Review the populated estimate values

Related article: K1 Aggregator Rollover Settings

Note: Rollover Settings are managed at the Instance level. For more info: K1 Aggregator Rollover Settings


Option 2: Upload in Bulk (Most Flexible)

Best for large datasets or external data.

  1. Go to Manage Investments
  2. Export investments or download the import template
  3. Locate the Federal K-1 / Estimate column
  4. Update the column header to “Estimate”
  5. Enter your estimate values
  6. Re-import the file
  7. Validate results


Updating Estimate vs. Federal K-1 via Excel

When using the export → edit → import workflow, the column header may appear as either:

  • “Federal K-1”, or
  • “Estimate”

This reflects where the data is currently stored in K1 Aggregator.

👉 You can change how values are treated by updating the column header before re-importing.

How it works:

  • “Estimate” → values are imported as estimate-only (non-integrating)
  • “Federal K-1” → values are treated as final and will integrate into your tax return

Example:

If you’ve been working in the Estimate column and are ready to finalize:

  1. Export your data
  2. Change the column header from “Estimate” → “Federal K-1”
  3. Re-import the file

Your values will now be treated as final and eligible for integration.

💡 Tip: This is the fastest way to update large volumes of data without manual edits.


Option 3: Manual Entry (Quick Edits)

Best for smaller updates.

  • Enter values directly in the Estimate column at the investment level

How to Review Estimate Data

You can review estimate data using:

  • K-1 Line Item Summary
    (Filter for Estimate values)
  • K-1 Comparison Report
    (Compare estimate vs. actual values)
  • Excel exports
    (Select “Estimate” as the amount type)

How to Use Estimates in Your Tax Return

Because estimate values do not automatically integrate, most users follow one of these approaches:


Prior Year Baseline Approach

Start with a full return using prior year data, then replace with actuals over time.

Best when:

  • Few current-year K-1s are available early

Hybrid Approach

Use actual K-1s as received and fill in missing values with prior year data.

Best when:

  • You expect most K-1s to arrive on time

Excel-Based Approach

Make updates in Excel before uploading and integrating.

Best when:

  • You need bulk edits or custom estimate logic

💡 Pro Tip

Use Statuses, Tags, and Estimate/Actual indicators in K1 Aggregator to keep large portfolios organized and easy to track.