<PAGE>
EXHIBIT 99.1
Net Interest Margin Trust 1994-B
July, 2000
Payment: August 15, 2000
7.85% SECURITIZED NET INTEREST
MARGIN CERTIFICATES
Cusip # 393534AB8
Trust Account # 33-31958-0
Distribution Date: August 15, 2000
<TABLE>
<CAPTION>
Per $1,000
Securitized Net Interest Margin Certificates Original
-------------------------------------------- ----------
<S> <C> <C>
1. Amount Available 377,963.10
----------------
Pro rata Share of Excess from NIM 94-A 304,915.79
----------------
Interest
2. Aggregate Interest 42,440.00 0.45930736
-----------------------------------
3. Amount Applied to:
(a) accrued but unpaid Interest
4. Remaining:
(a) accrued but unpaid Interest
5. Monthly Interest 42,440.00
----------------
Principal
6. Current month's principal distribution 640,438.89 6.93115682
-----------------------------------
7. Remaining outstanding principal balance 5,847,203.83 63.2814267
-----------------------------------
Pool Factor 0.06328143
----------------
8. Present value of the projected remaining aggregate
cashflows of the Finance I Assets and the
Residual Assets, as of the immediately
preceding Distribution Date 285,521,694.66**
----------------
9. Aggregate principal balance of loans
refinanced by Conseco Finance 490,698.12
----------------
10. Weighted average CPR 9.71%
----------------
11. Weighted average CDR 2.27%
----------------
12. Annualized net loss percentage 1.56%
----------------
13. Delinquency 30-59 day 1.31%
----------------
60-89 day 0.48%
----------------
90+ day 0.71%
----------------
Total 30+ 2.50%
----------------
</TABLE>
US Bank Trust N. A. Paying Agent/Bondholder Relations (612) 973-5800
** Represents present value of assets for NIM 94-A, 94-B, & 95-A, after
cross-collateralization, as of 7/15/00.
<PAGE>
Net Interest Margin Trust 1994-B
July, 2000
Payment: August 15, 2000
Fee Assets
--------------------------------------------
Guarantee Inside Fee Asset
Fees Refi Total
--------------------------------------------
GTFC 1994-1 0.00 5,299.60 5,299.60
GTFC 1994-2 0.00 0.00 0.00
GTFC 1994-3 0.00 0.00 0.00
GTFC 1994-4 0.00 0.00 0.00
--------------------------------------------
0.00 5,299.60 5,299.60
Total amount of Guarantee Fees and
Inside Refinance Payments 5,299.60
---------------
Subordinated Servicing Fees 191,364.12
---------------
Payment on Finance 1 Note 196,663.72
---------------
Allocable to Interest (current) 0.00
---------------
Allocable to accrued but unpaid Interest 0.00
---------------
Accrued and unpaid Trustee Fees 0.00
---------------
Allocable to Principal 0.00
---------------
Finance 1 Note Principal Balance 0.00
---------------
<PAGE>
Net Interest Margin Trust 1994-B
July, 2000
Payment: August 15, 2000
Inside
Residual Refi Total
----------------------------------------------
GTFC 1994-1 0.00 0.00 0.00
GTFC 1994-2 0.00 14,488.09 14,488.09
GTFC 1994-3 88,314.77 2,285.77 90,600.54
GTFC 1994-4 71,015.34 5,195.41 76,210.75
----------------------------------------------
159,330.11 21,969.27 181,299.38
Total Residual and Inside
Refinance Payments 181,299.38